The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Aug. 16, 2011
Filed:
Jun. 25, 2008
Applicants:
Yusuke Hirao, Sakai, JP;
Keiji Matsusaka, Osaka, JP;
Yasunari Fukuta, Hachioji, JP;
Inventors:
Assignee:
Konica Minolta Opto, Inc., Hachioji-shi, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G02B 9/12 (2006.01); G02B 3/02 (2006.01); G02B 9/14 (2006.01);
U.S. Cl.
CPC ...
Abstract
Provided is an imaging lens, including, in order from an object side: a positive first lens; a second lens having a concave shape toward the object side; and (i−2) number of lens, wherein the i-th lens, which is the most image-side lens, includes: an i-th lens flat plate; and a positive or negative lens element on at least one of the opposite surfaces of the i-th lens flat plate, wherein the following conditional relationship is satisfied: 0.9>Y/Y>0.61, where: Yis a height of the most off-axial ray on an image-side surface of the (i−1)th lens; and Y is a maximum image height.